EP 0520636 B1 19961127 - Surge protection device and system
Title (en)
Surge protection device and system
Title (de)
Überspannungschutzvorrichtung und -system
Title (fr)
Dispositif et système de protection contre surtentions
Publication
Application
Priority
US 72098091 A 19910625
Abstract (en)
[origin: EP0520636A2] A surge protection system has a surge protection device comprising a semiconducting disc element disposed between two electrodes. The element is operable to selectively conduct electrical energy between the electrodes in providing a first level of surge protection for the circuit, and the electrodes are adapted to move toward each other to maintain a short circuit condition between the electrodes in the event the element is destroyed in providing a second relatively greater level of surge protection. The semiconducting element provides a critical energy conduction path between a selected limited portion of one side of the element and the other element side along which destruction of the element preferentially occurs due to overheating in providing the second level of surge protection. One electrode has a selected limited post portion disposed in electrical engagement with said selected limited portion of said one element side to facilitate establishment and maintenance of the short circuit condition between the electrodes in providing the second level of surge protection. <IMAGE>
IPC 1-7
IPC 8 full level
H02H 9/04 (2006.01)
CPC (source: EP US)
H02H 9/042 (2013.01 - EP US); H02H 9/044 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0520636 A2 19921230; EP 0520636 A3 19930623; EP 0520636 B1 19961127; DE 69215442 D1 19970109; DE 69215442 T2 19970327; JP 3337236 B2 20021021; JP H05161259 A 19930625; US 5224008 A 19930629
DOCDB simple family (application)
EP 92305150 A 19920605; DE 69215442 T 19920605; JP 13699892 A 19920528; US 72098091 A 19910625